The priest son of late Supreme Court Justice Antonin Scalia said teaching the Gospel in today's fast-changing world is a challenge and needs new approaches and voices to be effective.

"The Gospel needs to be proclaimed in a new way, not a new Gospel, but put the same truths brought to the world in a new way," Father Paul Scalia of the Archdiocese of Arlington, Va., told Newsmax TV host Bill Tucker on Monday's "America Talks Live."

"It's a collection of essays I've written over the years on Catholic doctrine and devotion, and [I've] incorporated other writers to provide introductions to bring some more voices in," Scalia said.

"The intention is to bring out there the truth of our Lord and of the church and hopefully to contribute to people's conversion of heart and coming to know Jesus Christ and his church . . . The Gospel is always needed to be taught and renewed and put out again.

"I think today we have trouble getting the word out there sometimes, and I think also some confusion about what religion is and the importance of it."

One concern, according to Scalia, is when people compare religion and spirituality.

He said religion brings a structure to spirituality, and "without that structure, we're in danger of just doing whatever we want and our spirituality will be just of our own making,'' Scalia told Tucker.

"Spirituality without guidance and without truth, it becomes very dangerous for the individual.

"It's like an unguided missile has been launched and people, if they don't have that guidance, they can fall prey to things like, yes, radical Islam.

"Longing to be with God or to know him better, has to be guided by truth, which is doctrine and the two things must always go together, and if we don't have that truth guiding us, then we're in danger of winding up in some very damaging and dangerous places."